{"product_id":"zinsco-qfp175-3-circuit-breaker","title":"Zinsco | QFP175-3 | Circuit Breaker | 175A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003ch2\u003eZinsco QFP175-3 175A 3-Pole 240V Circuit Breaker\u003c\/h2\u003e\n\u003cp\u003eThe Zinsco QFP175-3 circuit breaker delivers dependable overcurrent protection for 240-volt power distribution. Built to fit panels that require the QFP style, this 3-pole breaker combines solid construction with a precise 175-amp rating to safeguard large branch circuits and feeders.\u003c\/p\u003e \u003cp\u003eKey specifications\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 175A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e QFP175-3 (best compatibility reference)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose this Zinsco QFP175-3 for your electrical upgrade\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eDesigned for maintenance, retrofit, and replacement projects where exact specifications matter. By matching the QFP175-3 part number, you ensure compatibility with your panel and reduce the risk of fit issues.\u003c\/li\u003e \u003cli\u003eIdeal for multi-wire and 240V distribution that relies on a three-conductor setup. A 3-pole arrangement helps manage protection across all lines in a three-phase or multi-phase configuration as required by your system.\u003c\/li\u003e \u003cli\u003eReliable 175-amp protection provides a balance between safety and performance for high-current circuits, such as large feeders, subpanels, or entrances in residential or light commercial settings.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical tips and considerations\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm fit and ratings with your panel's labeling and the manufacturer’s documentation before ordering. The part number QFP175-3 is the best reference to verify compatibility.\u003c\/li\u003e \u003cli\u003eDuring installation, ensure the breaker is seated properly in the panel and that the conductors correspond to the three poles. If your panel requires a different trip curve or mounting style, consider alternatives with matching specs.\u003c\/li\u003e \u003cli\u003eKeep a record of the breaker part number and the panel model in your maintenance log for future replacements or service updates.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eCompatibility and performance note\u003c\/p\u003e\n\u003cp\u003eThis Zinsco QFP175-3 is specifically identified by the part number to help you align replacement with your existing panel system. If you’re unsure about fit, consult the panel’s labeling and reach out to a qualified electrician for a quick verification—ensuring you have the right breaker for safe, reliable operation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Zinsco","offers":[{"title":"Default Title","offer_id":46425650397346,"sku":"QFP175-3","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/zinsco-qfp175-3-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}